, first lady michelle obama takes the stage but first, the delegates will hear from tonight's key note speaker mayor julian castro. mark matthews is in charlotte live, covering the convention. very big night for women at dnc. >> it is. the health and human services secretary is on stage right now. and we have seen a lot of women, camela harris, barbara lee, nancy pelosi taking the stage today on the first day of the convention. and polls are out showing the president's support among women has been dropping and he is counting on women and today has been a big day for women starting early with the california delegation. there are all speakers here this morning were women. >> we've got to wake up. we've got a big election. wake up. >> senator boxer rallied delegates this morning by answering republican challengers favorite question. >> are we better off than we were in 2008? yes, we are. >> boxer follow bid state attorney general harris. >> he got through the affordable care act. he saved our auto industry. >> and. >> it took donna brazil to fire things up. >> you get ready to tell americ

. >> for michelle obama the peak at the end of the speech hit 28,000 tweets per minute. compare that too ann romney, just over 6,000. that is 6,000 to 7,000 range, per minute. >> that is the head of of government and news for twitter saying the volume of reaction is weighted to the democrats. tone is, too. tweets running about evenly split between positive and negative. for mitt romney, more negative than positive. and that does not translate into voter preference. this does measure ability to control the conversation. wruf got to say democrats are getting more tweets. >> all mark, -- right, mark. be sure to stay with us for live coverage from abc news of the president's acceptance speech coming up at 7:00. >> there is mark will be back and you can follow his tweets. >> and g.o.p. vice presidential candidate paul ryan is in los angeles tonight. his first visit to california since being named mitt romney's running mate. and today' tacked the economic record and told supporters rights of americans come from nature and god and not from government. and there is one person that won't be givin